Charles a



(No Model.)

0. A. LIEB. TROLLEY WIRE SUPPORT. No. 450,242. Patented Apr. 14,1891.

hum! 3 INVENTDR ATTORNEY UNITED STATES PATENT OFFICE.

CHARLES A. LIFE, OF NEXV YORK, N. Y.

TROLLEY-WIRE SUPPORT.

SPECIFICATION forming part of Letters Patent No. 450,242, dated April 14, 1891.

Application filed November 1;, 1890. Serial No. 371,406. (No model.)

To aZZ whom it may concern.-

Be it known that 1, CHARLES A. LIEB, a citizen of the United States, and a resident of New York, in the county of New York and State of New York, have invented a certain new and useful Trolley-ire Supporter, of which the following is a specification.

My invention relates to improvements in trolley-wire supporters; and it consists in a peculiar construction of the device, whereby the supporter is insulated from the yard-arm or span-wire; also means whereby I secure more reliable connection between the yardarm or equivalent device and the supporter; and also I adapt a hood or umbrella to my improved supporter, whereby the injurious effects of the elements upon the apparatus is largely avoided 5 and by my new and improved construction I reduce the noise consequent upon the lifting of the old forms of trolleywire supports when the trolley-wheel passes under them, also occasioned by lateral movement of the supporter, consequent upon swinging of the wire; also, I largely avoid the possibility of the wires being short-circuited and also leakage thereof because of deposits of water, ice, and snow upon and about the sup porter. I also secure a double insulation of the trolley-wire, whereby should connection accidentally be made between the trolley-wire and the support for the bell-hanger or its equivalent, nevertheless the current cannot pass to the span-wire or the yard-arm,as the case may be, and thence through the pole, if of metal, to ground, which will not only disarrange the system, but is also exceedingly dangerous; and I also prevent water getting between the nut and the bells into which they are molded, which is supposed to occasion bursting of the bells.

In the drawings, Figure 1 illustrates a side View, partly in section, of one form of my invention in which I employ an umbrella. Fig. 2 illustrates a side view, also partly in section, of the simplest form of my invention. Fig. 3 illustrates a form similar to that shown in Fig. 2, but having also a metallic bushing for the insulating material, which prevents wear thereof. Fig. 43 illustrates also in section a construction in which the belt which connects the support to the yard-arm or its equivalent is molded or cast integral with the support, being embedded in the insulating material; Fig. 5 illustrates an edge view of the supporter shown in Fig. 4;.

A represents one of the poles for the support of the wires.

B is the yard-arm. An y other support for the devices hereinafter referred to may be employed instead of the yard-arm. I showit simply because it well illustrates my invention. On the form shown in Fi 1 the yardarm is bifurcated at its end at O, and the trolley-supporter is placed between the bifurcated ends.

I), Fig. l, is the bell.

E is the rod, which has at its lower end any suitable device for attaching, clamping, or holding an electric wire. Such device is not shown, there being several weltknown forms now in use.

F is the nut in the hell, with which the rod E engages.

G is the nut at the upper end of the bell with which the supporting-eyebolt II engages. This piece, which I call the eyebolt, may be of any preferred form, shape, and construction, not necessarily an eyebolt technically so called. Any construction which will give thenecessary hold for the insulation and support for the wire or for the bell, as the case may be, may be used.

I is the cross-bolt, which in the instance shown in Fig. 1 passes through the bifurcated ends of the yard-arm and also through a metallic sleeve or bushing J, which is embedded in the center of a layer of insulating material K, which entirely surrounds and incloses the eyebolt inside and outside. Thus there is no contact whatever between the bolt I and the eyebolt II.

L is a flange made on the lower end of the insulating material, which engages with the upper exterior part of the bell and prevents snow and ice from coming in contact with the eyebolt.

M is an umbrella which covers the device and measurably prevents snow and ice, rain and other material, from falling on the supports.

In Fig. l I show the apparatus as applied to the very end of a yard arm. Sometimes this constructionisnotcmployed; but, on the contrary, a bracket is hung from the yard-arm to which the supporter is attached. I then construct the parts as shown in Figs. 2, 3, 4, and 5. The parts are given the same letters of identification as in Fig. l, excepting that N is the bracket, which is fastened to the yard-arm by bolts or rivets O.

In the form shown in Fig. 2 Ido not employ any bushing. I prefer ordinarily to employ it, because thereby much wear on the insulation is avoided; but sometimesit is desirable to entirely avoid noise, and then, in order to save the expense of nicely selecting or fitting the cross-boltto conform to the exact size of the hole through the insulating material, thus preventing rattling, I omit the bushing, be-

cause the insulating material will not generate noise to any considerable degree.

In Fig. 3 I show aform similar to that shown in Fig.2, excepting that in it I do employ a bushing; and I also show the eyebolt as an eye-ring adapted to receive a threaded bolt from the bell instead of having itself a threaded bolt, as the other figures do, which threads into a nut in or on the bell.

In Figs. 4 and 5 I show a form the same as shown in Fig. 3, but Without the bushing. It is not necessary, because in this form I cast or mold the bolt P, which attaches the supporter to the hanger N, integral with the supporter, it being embedded in the insulating material. Q is the head of the bolt P. I make it large and fiat, so that it will take a firm hold on the insulating material.

It will be observed that the bell may be dispensed with entirely by simply attaching the wire-supporter E directly to the shank or nut of the eyebolt H; but I ordinarly prefer to use the bell, especially when iron poles are used in the system, because I thereby secure double insulation.

I do not limit myself to the details of constructions shown, beeause,.as will be readily understood by those who are familiar with this art, they may be departed from and still the essentials of my invention be employed.

I claim- 1. A support for an electric wire, comprising, essentially, across-bolt, a threaded metallic piece through which the cross-bolt passes, and insulating material between them, substantially as set forth.

2. A support for an electric wire, comprising, essentially, a cross-bolt, a threaded metallic part embedded in insulating material, and a bushing for the cross-bolt, substantially as set forth.

3. A support for an electric wire, comprisin g, essentially, a ring-shaped threaded metallic part embedded in the insulating material, the upper portion whereof forms an umbrella,

' and said insulating material,substantially as set forth.

4c. The combination of a bell, an eyebolt embedded in insulating material placed above the bell, and means whereby it may be attached to the bell and said insulatingmaterial, substantially as set forth.

5. The combination of a bell, an eyebolt embedded in insulating material and having a bushing to prevent wear of the insulating material, and means whereby the eyebolt may be attached to the bell, substantially asset forth.

6. The combination of a hell or like device, an eyebolt embedded in insulating material, an umbrella surmounting the insulating material, said insulating material itself, means whereby the eyebolt may be attached to the bell, and means for suspending the wire from the bell, substantially as set forth.

7. The combination of a bell, an eyebolt embedded in insulating material having a flange or collar where it comes in contact with the bell, said insulating material itself, and means of attaching the eyebolt to the bell, substantially as set forth.

8. The combination of a bell, an eyebolt embedded in insulating material which is formed into an umbrella at its upper partand into a collar or flange at its lower part where it comes in contact with the bell, said insulating material itself, and means of attaching the bell to the eyebolt, substantially as set forth.

Signed at New York, in the county of New York and State of New York, this 10th day of November, A. D. 1890.

CHARLES A. LIEB.

Witnesses:

FREDERICK SMITH, PHILLIPS ABBOTT. 

